Chlorosalicylic acid may refer to:3-Chlorosalicylic acid, RN = 1829-32-9, m.p. 180-182 °C 4-Chlorosalicylic acid, RN = 5106-98-9, m.p. 211 °C 5-Chlorosalicylic acid, RN = 321-14-2, m.p. 171.5 °C 6-Chlorosalicylic acid, RN = 56961-31-0, m.p. 171.5-172.5 °C